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摘要: 针对鱼眼图像高畸变的特点, 提出了一种适合于鱼眼图像的准稠密匹配扩散算法. 该算法采用局部仿射模型来建立图像对应区域之间的变换关系, 并利用这个仿射变换来规范化对应区域, 最后在规范化的区域上进行匹配扩散. 在局部仿射变换的计算中, 采用邻域传递的思路, 边扩散边邻域更新, 使扩散始终在较准确的对应区域内进行. 实验表明, 在大畸变的鱼眼图像下, 本文提出的准稠密扩散算法能够取得比较令人满意的匹配扩散结果.Abstract: In this paper, a novel quasi-dense matching algorithm through local neighborhood transfer is proposed for fish-eye images, characterized by severe projective distortions. A local affine model is used for the geometric transformation between two corresponding image patches. Patches are normalized with the known affine transformation before match propagation is applied to them. The local affine transformation is computed during the propagation by a new mechanism called neighborhood-transfer to ensure the propagation to be carried out in the correct neighborhood. Experiments with real fish-eye images show that our algorithm can provide satisfactory results.
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Key words:
- Fish-eye /
- quasi-dense matching /
- propagation /
- neighborhood-transfer
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